Electrical automatic stop for gasolene-engines.



PATENTED JUNE 30, 1908. G. EGHARD & R- S PAUL. ELECTRICAL AUTOMATIC STOP FOR GASOLENE ENGINES.

\1 LE n z will Inflen Zom- No. 892,035 PATENTED JUNE 30, 1908. C. ECHARD & R. S. PAUL.

ELECTRICAL AUTOMATIC STOP FOR GASOLENE ENGINES.

APPLICATION FILED m. 9, 1906.

2 SHEETS-BHEET 2.

UNITED STATES PATENT OFFICE.

CHARLES EOHARD AND ROLLA S. PAUL, OF MONTGOMERY CITY, MISSOURI.

ELECTRICAL AUTOMATIC STOP FOR GASOLENE-ENGINES.

Application filed August 9, 1906.

To all whom it may concern:

1 Be it known that we, CHARLES ECHARD and ROLLA S. PAUL, of Montgomery City, in the county of Montgomery and State of Missouri, have invented certain new and useful Improvements in Electrical Automatic Stops for Gasolene-Engines, of which the following is a full, clear, and exact description.

Our invention comprehends certain new and useful improvements in gasolene engines and the invention has for its object an improved construction of device or apparatus electrically actuated or controlled and so arranged that the engine may be stopped from any reasonably distant point and whenever desired, by the mere closing of a push-button or other manually operable switch.

With this and other objects in view as will more fully appear as the description proceeds, the invention consists in certain con structions, arrangements and combinations of the parts that we will hereinafter fully describe and then point out the novel features in the appended claims.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawings, in which:

Figure 1 is a front elevation of our improved electrieally-actuated stopping apparatus for gasolene engines; Fig. 2 is a top plan view thereof; Fig. 3 is a horizontal sectional view, the section being taken through the rotatable cylinder of the device; and, Fig. 4 is a sectional side elevation of the apparatus, the section being taken through the cylinder.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

Referring to the drawings, the numeral 1 designates the supporting member for the parts of the apparatus, said member, in the present instance, consisting of a board or plate, of any desired size and shape.

2 designates an attaching arm which is preferably of metal'and angular, as shown, and which is designed to secure the device to the proper part of the engine framework, or casing 3, as by the bolt 4 extending through an aperture formed for it in the attaching arm 2.

One or more electro-magnets 5 are mounted in any desired way on the main supporting member 1, and the armature 6 for said magnet is carried by a spring tension mem- Specification of Letters Patent.

Patented June 30, 1908.

Serial No. 329,951.

ber 7 secured at one end thereto and to the bracket 8 screwed or otherwise fastened on the plate 1. The armature 6 is normally held by this spring tension out of contact with the cores of the magnets.

A cylinder 9, which may be formed of brass or any other suitable metal, or material, is mounted to turn about a central axis on the screw or stud 10 secured to and projecting from the main supporting member or plate 1, and said cylinder 9 is hcld under tension to turn in one direction by means of the coil spring 11, as indicated by Fig. 3. The cylinder 10'is formed at one point in its periphery with an' opening 12, or any equivalent formation, designed to coact with a pin, or the like 13, secured to and projecting from the armature 6. In addition to the opening 12, the body portion of the cylinder 9 is formed with a lug 14 movable in the path of the opening and closing member 15 ofan automatic switch which includes in addition to the member 15 another member or contact 16, the two spring contacts 15 and 16 being secured to terminals 17 and 18. A lead 19 from the terminal 18 extends to one pole of the push button or other manually operable circuit opening and closing device 20 and from the other pole or terminal of the switch 20, a lead 21 extends, said lead being electrically connected to one of the electro-magnets 5. The opposite pole of the pair of electro-magnets 5 is connected by a lead 22 to the attaching arm 2 and thence to the engine battery and the other terminal 17 is connected to said battery by the lead 23.

A rod-like finger 24 is secured to the cylinder 9 and extends outwardly therefrom into the path of the hook-up stop A of the engine, said stop being arranged to open the main exhaust valve of the engine intermittently under the influence of a cam or the like on the engine shaft.

In the practical operation of our improved electrically actuated stop mechanism for gasolene engines, the cylinder 9 is turned by hand against the tension of its spring until the pin 13 of the armature 6 springs into locking engagement with the opening 12, or equivalent thereof, of the cylinder 9. In this locking position of the cylinder, its lug 14 will hold the spring contacts 15 and 16 against each other, as illustrated in Fig. 1, so as to complete the electric circuit in which the electroanagnets 5 are included, except at the point where the hand operated switch is located. Whenever it is desired to stop the engine after the parts have been thus set, it is only necessary to press the push button 20, or otherwise operate a manual switch at any desired point, no matter how remote from the engine, and this will effect the closing of the circuit through the electro-magnets 5. The magnets becoming energized attract the armature 6 and throw the same out of locking engagement with the cylinder, thereby releasing the latter and permitting it to swing backwardly under the influence of its spring 11, so as to at once automatically open the circuit and swing its finger 24 against the hook-up stop A on the engine, thereby holding the "hook-up stop stationary and effecting the opening of the main exhaust valve which will cut out the igniter, cause the inlet valve 'to cease working and consequently bring the engine to a standstill. As the electric circuit is at once automatically opened when the device is operated and is only again placed in condition for being closed by the hand switch when the stopping mechanism is just set, it is obvious that the batteries of the engine will not be unnecessarily depleted.

From the foregoing description in connection with the accompanying drawings, it will be seen that we have provided a very simple, durable and efficient construction of electrically actuated stop mechanism for gasolene engines, which may be controlled or set in operation at any desired point remote from the engine itself and which, in the present embodiment of the invention, operates mechanically after being released electrically to accomplish the desired result.

Having thus described the invention, what we claim as new is:

1. An apparatus for the purpose set forth, comprising a rotatable cylinder, means for automatically rotating the same in one direction, electrically controlled means for holding said cylinder against such rotation and for releasing the holding means, and a finger carried by said cylinder, as and for the pur-' pose set forth,

2. An apparatus for the purpose described, comprising, in combination with the hook-up stop of a gasolene engine, a supporting member, a rotatable cylinder mounted thereon, a finger carried by said cylinder and adapted to be moved thereby against the hook-up stop, spring tension means acting to turn the cylinder in a direction to carry its finger against the hook-up stop, means for holding said cylinder under tension with its finger away from said hook-up stop, and electrically controlled means for releasing said cylinder, the same including an automatically-opening switch, and the cylinder being provided with a lug adapted to hold said switch closed, with the holding means engaging the cylinder and to move out of engagement with the switch to permit the same to open upon the actuation of the releasing means.

3. An apparatus of the character described, comprising a main supporting member, electro-magnets mounted thereon, a spring tensioned armature also mounted thereon and normally held away from the magnets, said armature being provided with a pin, a cylinder mounted to rotate on said supporting member and formed with an ap erture designed to receive said pin, spring tension means actuated to rotate said cylinder in one direction, the cylinder being provided with a lug, an electric circuit in which said electro-magnets are included, said circuit also including a manually operable switch and an automatic switch adapted to be closed by the engagement therewith of said lug, and a finger carried by said cylinder and adapted to be moved thereby against the hookup stop of a gasolene engine.

CHARLES EOHARD. R. S. PAUL.

Attest:

TENNY HUNT, WVM. OwINcs. 

